Table 1. Characteristics of the longitudinal cohort, repeat cross-sectional sample and full T2 sample.

Variable	Longitudinal cohort (n = 365)				Repeat cross-sectional sample (T1 n = 980; T2 n = 978)				Full T2 sample (n = 1343)
	T1		T2		T1		T2		T2
	n	mean (SD) / %	n	mean (SD) / %	n	mean (SD) / %	n	mean (SD) / %	n	mean (SD) / %
Age (years)	360	50.4 (13.6)	363	58.5 (13.6)**	962	48.8 (18.3)	970	52.6 (16.5)**	1333	54.2 (16.0)
% male	361	43.5	363	44.4	970	37.1	972	42.8**	1335	43.2
% home ownership	360	61.1	363	62.5	965	47.9	971	49.6	1334	53.2
% car ownership	361	58.5	362	60.5	951	48.8	969	53.4**	1331	55.3
% working*	359	58.5	364	48.1**	961	48.3	972	48.3	1336	48.2
% with chronic condition	360	38.9	361	47.9**	955	39.0	964	43.9**	1325	45.0
% perceived financial strain	361		361		955		950		1311
Quite comfortably off		11.9		12.5		4.9		5.2		7.2
Can manage without difficulty		20.2		24.4		24.0		20.5		21.6
Have to be careful with money		52.9		47.1		51.9		52.4		51.0
Find it a strain to get by		15.0		16.1		19.2		21.9		20.3
Years lived in local area	365	18.3 (15.3)	362	24.9 (16.6)**	980	18.2 (18.0)	965	19.0 (17.4)	1327	20.6 (17.4)
SWEMWBS									1318	21.9 (4.1)
SF-8 PCS-8	352	47.4 (11.0)	360	45.9 (11.7)**	935	46.8 (11.8)	960	45.3 (12.1)**
SF-8 MCS-8	352	45.5 (11.1)	360	46.4 (11.1)	935	43.8 (11.6)	960	44.4 (12.1)

n–number; T–time point; SD–standard deviation; SF-8 MCS-8 –SF-8 mental component score; SF-8 PCS-8 –SF-8 physical component score; SWEMWBS–Warwick-Edinburgh Mental Well-being Scale (short version)

*In paid employment (full or part-time), full-time student, or undertaking voluntary work

**Significant difference between time points within the same study sample (p<0.05)